SYSTEMATIC SYNTHESIS OF TISSUES. 199 



quired in the preparation, so that sugar will be nearly if not quite as 

 cheap at double the price. Butter will produce no more heat than any 

 fat. Eggs are among the very cheapest articles of nutrition. Fowls, 

 being warmly clad, are easily supported, and a great deal of what they 

 eat is costless in summer ; hence their eggs are producible at less cost 

 than any other kind of meat Different kinds of breadstuff's are pro- 

 duced at varying costs, and are of different values. Beans and cabbages 

 are, among these classes of food, probably the cheapest, and if properly 

 prepared are exceedingly wholesome. The brown part (the middlings, 

 not the bran) of wheat is really the best of it, and can be bought at half 

 the price of flour. Note in particular that the BRAINS of animals being 

 the most highly wrought of any meat-food, are the best for man, espe- 

 cially for students and for " nervous " people. Brains, also, if rightly 

 cooked, are very delicious, and of course must be easily digested. Mil- 

 lions of dollars' worth of this best of food are yearly thrown away hi this 

 country. Verily, ignorance is costly. 



242. IN THE SIXTH PLACE, IT HAS BEEN CLEARLY EX- 

 HIBITED that plants compound our food with different 

 degrees of perfection under different circumstances, and 

 that similar different effects will be produced by animal 

 action upon the components of tissues. 



Remark. THIS FACT SHOULD BK PARTICULARLY WEIGHED in selecting 

 meats, for it is not to be supposed that good tissues can be composed in 

 the human body from the meat of imperfect animals, as many are that 

 are brought into the market (that cannot be considered cheap at any 

 price, unless it is good.) The process of corning is particularly injurious 

 to meats, since it takes out a large part of their phosphorus. It is a fit 

 method of preserving only fats, 



243. IN THE SEVENTH PLACE, IT HAS BEEN MADE EVI- 

 DENT that drink should be taken to satisfy thirst, and 

 that it should be water. 



244. IN THE EIGHTH PLACE, IT HAS BEEN FOUND NE- 

 CESSARY to health to supply the Blood with an abun- 

 dance of oxygen, only to be obtained from pure air ; that 

 this want is constant, by night as well as by day, for an 

 accumulation of carbonic acid in the blood is a poison 

 of the most deadly kind. 



What said of essrs? Fowls? Other substances? 242. What ? Remark. 

 When ? 243. What ? 244. What ? 



